New Australian CoLeoptera. 129 



equal to 2 and 3 combined, 2 cylindric narrower than 1 and slightly 

 longer than 3; 3, 4, 5 subequal, 6 a little shorter than 5, 7 slightly 

 longer than adjacent ones, 9 much wider than 8, slightly transverse, 

 10 a little longer and wider than 9, 11 longer than 9 and 10 combined, 

 subovate, rather strongly pointed, the last three forming a pronounced 

 club. Prothorax lightly elongate, very convex on disc, widest just 

 in front of middle, with a wide medio-basal longitudinal fovea and 

 three round lateral foveae, one each near base and apex, and one 

 submedian, on either side; puncturation as on head. Elytra lightly 

 transverse, sides evenly rounded to their widest part just before 

 apex; strongly convex; sutural striae well marked; with a short basal 

 impression on either side about midway between suture and lateral 

 margin; with numerous minute punctures. Abdomen slightly nar- 

 rower than elytra, lateral margins pronounced; with puncturation 

 as on elytra. Metasternum with two pro-minent conical tubercules 

 placed side by side on disc midway between intermediate and posterior 

 coxae, behind tubercules with surface depressed down middle. Under- 

 surface of abdomen a little flattened. Intermediate tibiae with a strong 

 subapical internal tooth. Trochanters unarmed. Maxilliary palpus 

 with the three apical joints inflated externally, apical joint bluntly 

 pointed and with several small setae at its apex, and along its 

 inner margin. Front tarsi with inner claw trifid, hind tibiae almost 

 straight. Femora rather stout. 



Length, 1.75 mm. 



Habitat.— Victoria: Fern Tree Gully, (F. E. Wilson). 



A very aberrant species with head somewhat like that of a Rytus^ 

 strange palpi, and armed intermediate tibiae, but nevertheless I think 

 best left in Palimbolus. Its palpi approach more those of pacifica 

 than any of the other species. Its armed intermediate tibiae should 

 serve to easily distinguish it from all other species. 



Type unique, in author's collection. 



EROTYLIDAE. 



Thallis atricornis, n.sp. 



Flavous tinged with red; glabrous, nitid. Head less a medio- 

 basal spot, two very large blotches on either side of prothorax, con- 

 nected at their bases by a thin line traversing the basal margin, 

 scutellum, a large circum-scutellary area, shoulders, a broad irregular 

 median fascia with front margin angularly depressed at suture, a 

 large blotch on either side at about apical third, each narrowly con- 

 nected with a large median blotch, which is triangular in shape on 

 its front margin and posteriorly, gradually narrowed to the apex of 

 elytra, black. Undersurface black, except prosternum, and apical 

 segments of abdomen. Femora black at apex, diluted with red 

 elsewhere; tibiae and antennae black; tarsi obscurely reddish. 



Head with numerous distinct punctures in front, more sparse 

 elsewhere; antennae of moderate length, joint 3 about one and 

 one fourth longer than either 2 or 4, 8 a little wider than 7, 9 and 



